Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition
Emissions of biogenic volatile organic compounds (BVOCs) from natural ecosystems impact atmospheric chemistry as well as biological interactions and even soil biogeochemical processes. Plant litter emits substantial amounts of BVOCs. These emissions may contribute to total ecosystem emissions especi...
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ftcdlib:oai:escholarship.org/ark:/13030/qt7th150v4 2023-05-15T14:46:04+02:00 Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition Svendsen, SH Priemé, A Voriskova, J Kramshøj, M Schostag, M Jacobsen, CS Rinnan, R 2018-05-01 application/pdf https://escholarship.org/uc/item/7th150v4 unknown eScholarship, University of California qt7th150v4 https://escholarship.org/uc/item/7th150v4 public BVOC Decomposition Bacteria Temperature Substrate Greenland Terpene Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture article 2018 ftcdlib 2021-07-05T17:08:15Z Emissions of biogenic volatile organic compounds (BVOCs) from natural ecosystems impact atmospheric chemistry as well as biological interactions and even soil biogeochemical processes. Plant litter emits substantial amounts of BVOCs. These emissions may contribute to total ecosystem emissions especially in the Arctic where the living plant biomass is low and the amount of litter is expected to increase as the deciduous shrubs expand in response to a warmer climate. Here, we incubated in the laboratory litter from the evergreen Cassiope tetragona and deciduous Salix spp. from a high arctic and a low arctic location. The 8-week-long incubation was conducted with temperature increasing from 5 °C to 26 °C, mimicking the transition from winter to summer. BVOC emissions from the decomposing litter were sampled weekly in adsorbent cartridges and analyzed using gas chromatography–mass spectrometry, and the bacterial community composition was investigated by sequencing of PCR amplified 16S rRNA gene fragments. Our results showed that litter from C. tetragona, which is a terpenoid storing species, had higher BVOC emission rates (mainly terpenoids) than the Salix litter, which does not have specialized BVOC storing compartments. The C. tetragona litter emissions were higher in the high arctic than the low arctic samples. The emission rates from the C. tetragona litter increased during the incubation period, whereas emission rates from the Salix litter decreased, suggesting that the emissions originated from different sources and/or processes. The bacterial community composition in the Salix litter, but not in the C. tetragona litter, changed in parallel with the changes in the BVOC emissions during the incubation period. Therefore, we suggest that bacteria may be more important for the BVOC emissions from decomposing Salix litter than C. tetragona litter. Article in Journal/Newspaper Arctic Cassiope tetragona Greenland University of California: eScholarship Arctic Greenland |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
BVOC Decomposition Bacteria Temperature Substrate Greenland Terpene Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture |
spellingShingle |
BVOC Decomposition Bacteria Temperature Substrate Greenland Terpene Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture Svendsen, SH Priemé, A Voriskova, J Kramshøj, M Schostag, M Jacobsen, CS Rinnan, R Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
topic_facet |
BVOC Decomposition Bacteria Temperature Substrate Greenland Terpene Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture |
description |
Emissions of biogenic volatile organic compounds (BVOCs) from natural ecosystems impact atmospheric chemistry as well as biological interactions and even soil biogeochemical processes. Plant litter emits substantial amounts of BVOCs. These emissions may contribute to total ecosystem emissions especially in the Arctic where the living plant biomass is low and the amount of litter is expected to increase as the deciduous shrubs expand in response to a warmer climate. Here, we incubated in the laboratory litter from the evergreen Cassiope tetragona and deciduous Salix spp. from a high arctic and a low arctic location. The 8-week-long incubation was conducted with temperature increasing from 5 °C to 26 °C, mimicking the transition from winter to summer. BVOC emissions from the decomposing litter were sampled weekly in adsorbent cartridges and analyzed using gas chromatography–mass spectrometry, and the bacterial community composition was investigated by sequencing of PCR amplified 16S rRNA gene fragments. Our results showed that litter from C. tetragona, which is a terpenoid storing species, had higher BVOC emission rates (mainly terpenoids) than the Salix litter, which does not have specialized BVOC storing compartments. The C. tetragona litter emissions were higher in the high arctic than the low arctic samples. The emission rates from the C. tetragona litter increased during the incubation period, whereas emission rates from the Salix litter decreased, suggesting that the emissions originated from different sources and/or processes. The bacterial community composition in the Salix litter, but not in the C. tetragona litter, changed in parallel with the changes in the BVOC emissions during the incubation period. Therefore, we suggest that bacteria may be more important for the BVOC emissions from decomposing Salix litter than C. tetragona litter. |
format |
Article in Journal/Newspaper |
author |
Svendsen, SH Priemé, A Voriskova, J Kramshøj, M Schostag, M Jacobsen, CS Rinnan, R |
author_facet |
Svendsen, SH Priemé, A Voriskova, J Kramshøj, M Schostag, M Jacobsen, CS Rinnan, R |
author_sort |
Svendsen, SH |
title |
Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
title_short |
Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
title_full |
Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
title_fullStr |
Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
title_full_unstemmed |
Emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
title_sort |
emissions of biogenic volatile organic compounds from arctic shrub litter are coupled with changes in the bacterial community composition |
publisher |
eScholarship, University of California |
publishDate |
2018 |
url |
https://escholarship.org/uc/item/7th150v4 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Cassiope tetragona Greenland |
genre_facet |
Arctic Cassiope tetragona Greenland |
op_relation |
qt7th150v4 https://escholarship.org/uc/item/7th150v4 |
op_rights |
public |
_version_ |
1766317341033889792 |